NETRICSA(NEuro-TRonically Implanted Combat Situation Analyser), is a combat situation artificial intelligence chip connected to the perceptual cortices of Sam Stone's brain and provides analysises on enemies and obstacles, giving him a detailed guide to help him defeat them and get through the obstacles. The chip implanted in Sam's brain is version 2.01 of the AI and the personality is female. To the annoyance of the very serious Sam, NETRISCA's female personality comes with a sense of humour which she tends to use often. By the time of Serious Sam 2, NETRICSA can talk and jokes about a bigger game budget, possibly the real life reason as to why she got a voiceover. She asks Sam to nickname her NETTIE.